package com.atguigu.eduservice.controller;


import com.atguigu.commonutils.R;
import com.atguigu.eduservice.entity.EduTeacher;
import com.atguigu.eduservice.entity.vo.TeacherQuery;
import com.atguigu.eduservice.service.EduTeacherService;
import com.atguigu.servicebase.exceptionhandler.GuliException;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import io.swagger.annotations.ApiParam;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.*;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * <p>
 * 讲师 前端控制器
 * </p>
 *
 * @author haobk
 * @since 2021-10-02
 */
@Api(description = "讲师管理")
@RestController
@RequestMapping("/eduservice/teacher")
public class EduTeacherController {
    @Autowired
    EduTeacherService eduTeacherService;
    @ApiOperation("1.查询讲师列表")
    @GetMapping("/findAll")
    public R list(){
        List<EduTeacher> list = eduTeacherService.list(null);
        return R.ok().data("items",list);
    }

    @ApiOperation("2.根据id逻辑删除讲师")
    @DeleteMapping("/{id}")
    public R removeTeacher(@ApiParam(name = "id",value = "讲师ID",required = true)
                                     @PathVariable String id){
        boolean flag = eduTeacherService.removeById(id);
        return flag ? R.ok() : R.error();
    }
    @ApiOperation("3.分页查询讲师列表")
    @GetMapping("/pageTeacher/{current}/{limit}")
    public R pageListTeacher(@PathVariable long current,
                             @PathVariable long limit){
//        创建Page对象
        Page<EduTeacher> pageTeacher = new Page<>(current, limit);
//        调用方法实现分页
        eduTeacherService.page(pageTeacher,null);
        long total = pageTeacher.getTotal();
        List<EduTeacher> records = pageTeacher.getRecords();
//        方式1：
//        return R.ok().data("total", total).data("rows", records);
        Map<String, Object> map = new HashMap<>();
        map.put("total", total);
        map.put("rows", records);
        return R.ok().data(map);
    }
    @ApiOperation("4.带条件的分页查询")
    @PostMapping("/pageTeacherCondition/{current}/{limit}")
    public R pageTeacherCondition(@PathVariable long current,
                                  @PathVariable long limit,
                                  @RequestBody(required = false) TeacherQuery teacherQuery){
        Page<EduTeacher> pageTeacher = new Page<>(current, limit);
        QueryWrapper<EduTeacher> queryWrapper = new QueryWrapper<>();
//        判断条件值是否为空
        String name = teacherQuery.getName();
        Integer level = teacherQuery.getLevel();
        String begin = teacherQuery.getBegin();
        String end = teacherQuery.getEnd();
        if(!StringUtils.isEmpty(name)){
            queryWrapper.like("name", name);
        }
        if(!StringUtils.isEmpty(level)){
            queryWrapper.eq("level",level);
        }
        if(!StringUtils.isEmpty(begin)){
            queryWrapper.ge("gmt_create", begin);
        }
        if (!StringUtils.isEmpty(end)){
            queryWrapper.le("gmt_create", end);
        }
        eduTeacherService.page(pageTeacher,queryWrapper);
        long total = pageTeacher.getTotal();
        List<EduTeacher> records = pageTeacher.getRecords();
        Map<String, Object> map = new HashMap<>();
        map.put("total", total);
        map.put("rows", records);
        return R.ok().data(map);
    }
    @ApiOperation("5.添加讲师")
    @PostMapping("/addTeacher")
    public R addTeacher(@RequestBody EduTeacher eduTeacher){
        boolean save = eduTeacherService.save(eduTeacher);
        return save ? R.ok() : R.error();
    }

    @ApiOperation("6.根据id查询讲师")
    @GetMapping("/getTeacher/{id}")
    public R getTeacher(@PathVariable String id){
        EduTeacher teacherById = eduTeacherService.getById(id);
        return R.ok().data("teacher", teacherById);
    }

    @ApiOperation("7.修改讲师")
    @PostMapping("/updateTeacher")
    public R updateTeacher(@RequestBody EduTeacher eduTeacher){
        boolean flag = eduTeacherService.updateById(eduTeacher);
        try {
            int i = 10 / 0;
        } catch (Exception e) {
            throw new GuliException(20001, "执行了自定义异常处理");
        }
        return flag ? R.ok() : R.error();
    }
}

